iPhone not charging due to faulty flex cable

in a nutshell: https://www.youtube.com/watch?v=tsifNUSm...

in detail: I replaced a lightning/headphone flex cable, now whenever I connect it it thinks the home button is pressed and turns up siri for whatever reason. Oh did I mention it won't charge at all? Yeah, yesterday felt like spending the last hours with someone who has cancer - you know the end is coming very soon and there's nothing you can do about it.. My only solution for now is getting that board (this exact one http://www.ebay.com/itm/Battery-Activate...) that charges the battery independently and basically charging the battery, then putting it back in and repeat the whole process. I made sure to turn off the apple id completely from it, but I forgot to remove the passcode. If (when) I get that board, charge the phone and make it work once again, I'll remove the passcode too. Question is: keeping in mind that it won't see the lightning cable, meaning I can'texport all my pictures, is there any way for me to export all of my phone (no, I don't have enough space for 2,400 rs7 pictures on my icloud) to another phone? This phone was jailbroken, please don't kill me lol. Jailibreak was the only way for me to enjoy music properly (EQeverywhere) and save the instagram pictures for a repost (ig+) and when the new iphone comes out I'll get my mom's 6S on 9.0.2 that's already jailbroken, BUT before that happens, all I care about is my instagram page because I don't have pictures to post now and my baby 5C is dead I really need help :'(